# Metadata structure

<figure><img src="/files/fVwqYHnYvCsgvyJ7QBPK" alt=""><figcaption></figcaption></figure>

## To have better understanding metapro protocol flow 🛠️

<img src="/files/nPmv6PgiVEYEMzSRKkZe" alt="" class="gitbook-drawing">

<details>

<summary>How to read all data about Token ?</summary>

To get access to data about token You need to follow these steps:

* Enter [BSC Scan](https://bscscan.com/address/0xa293D68684Be29540838Dc8A0222De0c43c6b5B4#readContract)

* In BNB Smart Chain Explorer find MetaproMetaAsset Contract **`0xa293D68684Be29540838Dc8A0222De0c43c6b5B4`**

* Click on Contract and Read Contract

  <figure><img src="/files/GKtYUVtoafinTxSVFLuP" alt=""><figcaption><p>View of contract on BSC Scan</p></figcaption></figure>

* In this tab we have all methods which we can read from MetaproMetaAsset Contract

* Last method calls "uri" which get data about token.&#x20;

  <figure><img src="/files/gTioHuMKpxR2K3Z20zX1" alt=""><figcaption><p>Method called "uri" where you can insert TokenId</p></figcaption></figure>

* Copy link from response and paste it on new browser tab&#x20;

  <figure><img src="/files/FGVonumMsYmAbYbFVGdp" alt=""><figcaption><p>Example of JSON response with all data about token</p></figcaption></figure>

⚠️ Hint : If you want to have parsed data like on picture above it needs JSON formatter extension installed on browser

</details>

<details>

<summary>How to read metadata ?</summary>

Follow steps on [#how-to-read-all-data-about-token](#how-to-read-all-data-about-token "mention")&#x20;

* Metadata response&#x20;

  <figure><img src="/files/if43BTkZvY10aTk3TRbe" alt=""><figcaption><p>Example response of token</p></figcaption></figure>

&#x20;You can get detailed informations with description of each key type here : [#nft-properties-scheme](#nft-properties-scheme "mention")

</details>

## &#x20;NFT Properties scheme  📒

<table><thead><tr><th width="205">Key</th><th>Value Type</th><th width="120">Required</th><th>Description</th></tr></thead><tbody><tr><td>asset_category</td><td>string</td><td>true</td><td>NFT category</td></tr><tr><td>asset_category_ids</td><td>integerArray</td><td>false</td><td>List of ids from database</td></tr><tr><td>asset_subcategories</td><td>stringArray</td><td>false</td><td>NFT subcategories</td></tr><tr><td>asset_tags</td><td>stringArray</td><td>false</td><td>NFT tags</td></tr><tr><td>asset_tag_ids</td><td>integerArray</td><td>false</td><td>List of Ids from database</td></tr><tr><td>asset_geometry</td><td>string (dictionary)</td><td>false</td><td><p>Polygonal Quads only</p><p>Polygonal Quads/ Tris</p><p>Polygonal Tris only</p><p>Polygonal Ngons</p><p>Polygonal, Subdivision</p><p>Nurbs</p><p>Unknown</p><p>null</p></td></tr><tr><td>asset_polygons</td><td>intiger</td><td>false</td><td>Number of polygons</td></tr><tr><td>asset_verticles</td><td>intiger</td><td>false</td><td>Number of verticles</td></tr><tr><td>asset_materials</td><td>boolean</td><td>false</td><td>If the files contain materials</td></tr><tr><td>asset_textures</td><td>boolean</td><td>false</td><td>If the files contain textures</td></tr><tr><td>asset_uv_mapped</td><td>boolean</td><td>false</td><td>If the files are uv mapped</td></tr><tr><td>asset_animated</td><td>boolean</td><td>false</td><td>If the files contain animations</td></tr><tr><td>asset_width</td><td>intiger</td><td>false</td><td>First input of resolution</td></tr><tr><td>asset_height</td><td>intiger</td><td>false</td><td>Second input of resolution</td></tr><tr><td>asset_layers</td><td>boolean</td><td>false</td><td>Yes/ No</td></tr><tr><td>asset_bpm</td><td>intiger</td><td>false</td><td>Given range</td></tr><tr><td>asset_sample_rate</td><td>string (dictionary)</td><td>false</td><td><p>44.1 kHz</p><p>48 kHz<br>null</p></td></tr><tr><td>asset_bit_depth</td><td>intiger</td><td>false</td><td>Given range</td></tr><tr><td>asset_channels</td><td>string (dictionary)</td><td>false</td><td><p>Stereo</p><p>Mono</p><p>null</p></td></tr><tr><td>asset_duration</td><td>string</td><td>false</td><td>hh:mm:ss</td></tr><tr><td>asset_licence</td><td>string (dictionary)</td><td>true</td><td><p>Royalty Free (RF)</p><p>Rights Managed (RM)</p><p>Creative Commons (CC)</p></td></tr><tr><td>asset_restriction</td><td>string (dictionary)</td><td>true</td><td><p>Public meta asset</p><p>Restricted meta asset</p></td></tr><tr><td>asset_type</td><td>string [array]</td><td>true</td><td><p>an array with possible values:</p><p>3d meta asset</p><p>2d meta asset</p><p>sound meta asset</p></td></tr></tbody></table>

## NFT Properties JSON ⚙️

```json
{
   "description":"Description of token",
   "image":"Direct link to storage",
   "extraFiles":[
      "https://resource-link.com",
      "https://resource-link2.com",
      "https://resource-link3.com"
   ],
   "minifiedImage":"Direct link to storage where image is with extension avif or webp",
   "name":"Token Name",
   "properties":{
      "item_experiance":[
         {
            "key":"game_score",
            "value":"xxxxxx",
            "value_type":"xxxxxx"
         }
      ],
      "common":{
         "standard":[
            {
               "key":"asset_licence",
               "value":"Royalty Free (RF)",
               "value_type":"string"
            },
            {
               "key":"asset_restriction",
               "value":"Public meta asset",
               "value_type":"string"
            },
            {
               "key":"asset_type",
               "value":[
                  "2d meta asset",
                  "Sound meta asset"
               ],
               "value_type":"string array"
            },
            {
               "key":"asset_tags",
               "value":[
                  "metaverse",
                  "abstract"
               ],
               "value_type":"string array"
            },
            {
               "key":"asset_tag_ids",
               "value":[
                  12,
                  44
               ],
               "value_type":"integer array"
            },
            {
               "key":"asset_category",
               "value":"Other",
               "value_type":"string"
            },
            {
               "key":"asset_subcategories",
               "value":[
                  
               ],
               "value_type":"string array"
            },
            {
               "key":"asset_category_ids",
               "value":[
                  37
               ],
               "value_type":"integer array"
            }
         ],
         "2d_spec":[
            {
               "key":"asset_width",
               "value":474,
               "value_type":"integer"
            },
            {
               "key":"asset_height",
               "value":238,
               "value_type":"integer"
            },
            {
               "key":"asset_layers",
               "value":true,
               "value_type":"boolean"
            }
         ],
         "3d_spec":[
            {
               "key":"asset_geometry",
               "value":"Polygonal Quads/Tris",
               "value_type":"string"
            },
            {
               "key":"asset_polygons",
               "value":47494,
               "value_type":"integer"
            },
            {
               "key":"asset_vertices",
               "value":23854,
               "value_type":"integer"
            },
            {
               "key":"asset_materials",
               "value":true,
               "value_type":"boolean"
            },
            {
               "key":"asset_textures",
               "value":false,
               "value_type":"boolean"
            },
            {
               "key":"asset_uv_mapped",
               "value":false,
               "value_type":"boolean"
            },
            {
               "key":"asset_animated",
               "value":false,
               "value_type":"boolean"
            }
         ],
         "sound spec":[
            {
               "key":"asset_bpm",
               "value":50,
               "value_type":"integer"
            },
            {
               "key":"asset_sample_rate",
               "value":"44.1 kHz",
               "value_type":"string"
            },
            {
               "key":"asset_bit_depth",
               "value":16,
               "value_type":"integer"
            },
            {
               "key":"asset_channels",
               "value":"Stereo",
               "value_type":"string"
            },
            {
               "key":"asset_duration",
               "value":"01:00:15",
               "value_type":"string"
            },
            {
               "key":"asset_isrc_code",
               "value":"AA6Q72000047",
               "value_type":"string"
            },
            {
               "key":"asset_isvc_code",
               "value":"AA6Q72000047",
               "value_type":"string"
            }
         ]
      }
   }
}
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.metaproprotocol.com/metapro-protocol/metadata-structure.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.